Dead Batteries

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Bosunof

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I have just three 130 amphour batteries and they have all gone flat. Never happened before.

What do I do to recover the situation? I have them on trickle charge for the last twenty four hours and will top up the battery fluid tomorrow. What else should I do?

Thanks

Bosunof
 
We really need more information.

Are the batteries connected to anything?

Are they connected together?

Is the fluid level low? If low you need to top up before charging.

Are the batteries in storage?

Have they been connected to a charger?

Do you have a charger with a "conditioning" mode?

Richard
 
Bosunof said:
I have just three 130 amphour batteries and they have all gone flat. Never happened before.

What do I do to recover the situation? I have them on trickle charge for the last twenty four hours and will top up the battery fluid tomorrow. What else should I do?

Thanks

Bosunof
Click to expand...

Get them on a proper, preferably automatic, charger for starters . Say a 12 to 15 amp charger to charge them individually or a 30 0r 40 amp charger to do all three together. A trickle charger will take days to charge them even if it succeeds.


Then you need to check for the reason they were discharged. If it was fairly quickly you will be looking for a significant current drain.
 
If they are in parallel then it is possible that you have only one battery with a dead cell. That one will drag down the other two.

Fairly easy to diagnose, charge each battery independently and do a load test. The poorly battery will show low.

There are good reasons to replace all three at the same time but I have gone down the single battery replacement route and got another couple of years from my May September bank.
 
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